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102 U. S. GOVERNMENT FILMS Landings U.S. Department of the Navy, 1946. (Primary Flight Training Series) How to land; gain landing altitude through gliding approach and stall; maintain heading; correct for excess landing speed; attitude of plane and bird in landing compared. (MN 3474-i; 13 minutes) 7 The Lathe U.S. Office of Education, 1944. (Machine Shop Work Series. Basic Machines) Functions, characteristics, and basic op- erations of the engine lathe. Supplemen- tary filmstrip, same title, also available. (OE 68; 15 minutes) 32, 41 Latitude by Polaris U.S. Department of the Air Force, 1942. (Celestial Navigation Series) Relation- ship between latitude and elevated pole; position and diurnal path of Polaris; reduction of altitude of elevated pole. (TF 1-545; 10 minutes) 7, 32, 41 Launching U.S. Department of the Navy, 1943. (Fundamentals of Patrol Plane Haiidling Series) How to launch a seaplane from concrete ramp. (MN 1338-c; 18 minutes) 41 Laying Out and Forming Plywood U.S. Office of Education, 1944. (Aircraft Work Series. Wood Fabrication No. 3) How to lay out plywood using blueprints and templates; form plywood in a press; reinforce plywood; and apply glue and varnish. Supplementary filmstrip, same title, also available. (OE 285; 21 min- utes) 32, 41 Laying Out and Installing Compart- ment Fixtures U.S. Office of Education, 1945. (Ship- building Skills Series. Marine Electricity No. 5) How to locate installations on a plan-view blueprint; lay out ceiling fix- tures and studs; lay out and burn a hole for the passage of cable; install ceiling fixtures. Animation. Supplementary film- strip, same title, also available. (OE 114; 12 minutes) 32, 41 Laying Out and Installing Hangers U.S. Office of Education, 1944. (Ship- building Skills Series. Pipefitting No. 5) How to measure and cut hanger legs to length; install stool, angle iron bracket, strap, rod, and saddle hangers. Supple- mentary filmstrip, same title, also avail- able. (OE 120; 19 minutes) 32, 41 Laying Out and Installing Kickpipes and Stuffing Tubes U.S. Office of Education, 1945. (Ship- building Skills Series. Marine Electricity No. 1) How to distinguish the three types of kickpipes; lay out penetration areas; install kickpipe areas; lay out and install single kickpipes and stuffing tube areas. Animation. Supplementary filmstrip, same title, also available. (OE 110; 16 minutes) 32, 41 Laying Out and Installing Main Wireway U.S. Office of Education, 1945. (Ship- building Skills Series. Marine Electricity No. 2) How to lay out and install race- ways and wireways; calculate the width of a hanger to be used; determine the spacing of hangers; overcome obstacles in route of a raceway. Animation. Sup- plementary filmstrip, same title, also available. (OE 111; 21 minutes) 32, 41 Laying Out and Installing Stern Tube, Tail Shaft, and Propeller. Part 1: Running a Temporary Line U.S. Office of Education, 1944. (Ship- building Skills Series. Marine Machinery Installation No. 6) How the propeller post is prepared for running a temporary line; how to adjust a line to the center of bulkhead openings; eliminate the sag when a line has been run. Supplemen- tary filmstrip, same title, also available. (OE 100; 22 minutes) 32, 41